/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)

This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "liveMedia"
// Copyright (c) 1996-2018 Live Networks, Inc.  All rights reserved.
// RTP sink for AMR audio (RFC 4867)
// C++ header

#ifndef _AMR_AUDIO_RTP_SINK_HH
#define _AMR_AUDIO_RTP_SINK_HH

#ifndef _AUDIO_RTP_SINK_HH

#include "AudioRTPSink.hh"

#endif

class AMRAudioRTPSink : public AudioRTPSink {
public:
    static AMRAudioRTPSink *createNew(UsageEnvironment &env,
                                      Groupsock *RTPgs,
                                      unsigned char rtpPayloadFormat,
                                      Boolean sourceIsWideband = False,
                                      unsigned numChannelsInSource = 1);

    Boolean sourceIsWideband() const { return fSourceIsWideband; }

protected:
    AMRAudioRTPSink(UsageEnvironment &env, Groupsock *RTPgs,
                    unsigned char rtpPayloadFormat,
                    Boolean sourceIsWideband, unsigned numChannelsInSource);
    // called only by createNew()

    virtual ~AMRAudioRTPSink();

private: // redefined virtual functions:
    virtual Boolean sourceIsCompatibleWithUs(MediaSource &source);

    virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
                                        unsigned char *frameStart,
                                        unsigned numBytesInFrame,
                                        struct timeval framePresentationTime,
                                        unsigned numRemainingBytes);

    virtual Boolean
    frameCanAppearAfterPacketStart(unsigned char const *frameStart,
                                   unsigned numBytesInFrame) const;

    virtual unsigned specialHeaderSize() const;

    virtual char const *auxSDPLine();

private:
    Boolean fSourceIsWideband;
    char *fFmtpSDPLine;
};

#endif
